TED-Ed

How does work...actually work? - Peter Bohacek

View full lesson: http://ed.ted.com/lessons/how-does-work-work-peter-bohacek [http://ed.ted.com/lessons/how-does-work-work-peter-bohacek] The concepts of work and power help us unlock and understand many of the physical laws that govern our universe. In this Lesson, Peter Bohacek explores the interplay of each concept when applied to two common objects---a lightbulb and a grandfather clock. Lesson by Peter Bohacek, animation by Luke Cahill. Learn more about your ad choices. Visit megaphone.fm/adchoices [https://megaphone.fm/adchoices]

The magic of QR codes in the classroom - Karen Mensing

Teaching is both a science and an art, and many teachers around the world spend endless hours perfecting their professional practice. At TEDActive 2013, a few teachers from the United States offer some tricks of the trade they've learned (and continue to hone) along the way. Learn more about your ad choices. Visit megaphone.fm/adchoices [https://megaphone.fm/adchoices]

The trillion dollar puzzle - George Zaidan

Explore the possibility of transitioning to a green economy, and if the trillion-dollar up-front cost is worth the investment. -- Global warming is very, very expensive: extreme weather, rising sea levels, crop failures, health issues, and industry disruptions all cost money. So, what’s the best way forward? Is the estimated trillion-dollar price tag that comes with transitioning the world to clean energy worth the cost of investment? George Zaidan explores what it would take to become a green economy. Lesson by George Zaidan, directed by Sofia Pashaei. This video made possible in collaboration with Speed & Scale Learn more about how TED-Ed partnerships work: https://bit.ly/TEDEdPartner [https://bit.ly/TEDEdPartner] A special thanks to Michael Grubb who provided information and insights for the development of this video. Support Our Non-Profit Mission ---------------------------------------------- Support us on Patreon: http://bit.ly/TEDEdPatreon [http://bit.ly/TEDEdPatreon] Check out our merch: http://bit.ly/TEDEDShop [http://bit.ly/TEDEDShop] ---------------------------------------------- Connect With Us ---------------------------------------------- Sign up for our newsletter: http://bit.ly/TEDEdNewsletter [http://bit.ly/TEDEdNewsletter] Follow us on Facebook: http://bit.ly/TEDEdFacebook [http://bit.ly/TEDEdFacebook] Find us on Twitter: http://bit.ly/TEDEdTwitter [http://bit.ly/TEDEdTwitter] Peep us on Instagram: http://bit.ly/TEDEdInstagram [http://bit.ly/TEDEdInstagram] ---------------------------------------------- Keep Learning ---------------------------------------------- View full lesson: https://ed.ted.com/lessons/the-trillion-dollar-paradox-george-zaidan [https://ed.ted.com/lessons/the-trillion-dollar-paradox-george-zaidan] Dig deeper with additional resources: https://ed.ted.com/lessons/the-trillion-dollar-paradox-george-zaidan/digdeeper [https://ed.ted.com/lessons/the-trillion-dollar-paradox-george-zaidan/digdeeper] Music: https://www.campstudio.co [https://www.campstudio.co] ---------------------------------------------- Thank you so much to our patrons for your support! Without you this video would not be possible! Rohan Gupta, Begum Tutuncu, Brian Richards, Jørgen Østerpart, Tyron Jung, Carsten Tobehn, Katie Dean, Ezgi Yersu, Gerald Onyango, alessandra tasso, Doreen Reynolds-Consolati, Manognya Chakrapani, Ayala Ron, Eunsun Kim, Phyllis Dubrow, Ophelia Gibson Best, Paul Schneider, Joichiro Yamada, Henrique Cassús, Karthik Cherala, Clarence E. Harper Jr., Vignan Velivela, Ana Maria, Exal Enrique Cisneros Tuch, Tejas Dc, Khalifa Alhulail, Martin Stephen, Jose Henrique Leopoldo e Silva, Mandeep Singh, Abhijit Kiran Valluri, Morgan Williams, Devin Harris, Pavel Zalevskiy, Karen Goepen-Wee, Filip Dabrowski, Barbara Smalley, Megan Douglas, Tim Leistikow, Ka-Hei Law, Hiroshi Uchiyama, Mark Morris, Misaki Sato, EdoKun, SookKwan Loong, Bev Millar, Lex Azevedo, Michael Aquilina, Jason A Saslow, Yansong Li, and Cristóbal Moenne. Learn more about your ad choices. Visit megaphone.fm/adchoices [https://megaphone.fm/adchoices]

Dance vs. PowerPoint, a gentle proposal - John Bohannon

View full lesson: http://ed.ted.com/lessons/dance-vs-powerpoint-a-modest-proposal-john-bohannon [http://ed.ted.com/lessons/dance-vs-powerpoint-a-modest-proposal-john-bohannon] Use dancers instead of PowerPoint. That's science writer John Bohannon's "modest proposal." In this spellbinding choreographed talk he makes his case by example, aided by dancers from Black Label Movement. Talk by John Bohannon. Learn more about your ad choices. Visit megaphone.fm/adchoices [https://megaphone.fm/adchoices]

How has English transformed? - Kate Gardoqui

View full lesson: http://ed.ted.com/lessons/how-did-english-evolve-kate-gardoqui [http://ed.ted.com/lessons/how-did-english-evolve-kate-gardoqui] What is the difference between "a hearty welcome" and "a cordial reception"? In a brief, action-packed history of the English language, Kate Gardoqui explains why these semantically equal phrases evoke such different images. Lesson by Kate Gardoqui, animation by Ben Tobitt. Learn more about your ad choices. Visit megaphone.fm/adchoices [https://megaphone.fm/adchoices]